leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
56ca499f1b
linux/drivers/crypto
History
Ard Biesheuvel 56ca499f1b crypto: sahara - permit asynchronous skcipher as fallback 
Even though the sahara driver implements asynchronous versions of
ecb(aes) and cbc(aes), the fallbacks it allocates are required to be
synchronous. Given that SIMD based software implementations are usually
asynchronous as well, even though they rarely complete asynchronously
(this typically only happens in cases where the request was made from
softirq context, while SIMD was already in use in the task context that
it interrupted), these implementations are disregarded, and either the
generic C version or another table based version implemented in assembler
is selected instead.

Since falling back to synchronous AES is not only a performance issue, but
potentially a security issue as well (due to the fact that table based AES
is not time invariant), let's fix this, by allocating an ordinary skcipher
as the fallback, and invoke it with the completion routine that was given
to the outer request.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-16 21:49:04 +10:00
..
allwinner crypto: sun8i-ss - permit asynchronous skcipher as fallback 2020-07-16 21:49:02 +10:00
amcc crypto: crypto4xx - use GFP_KERNEL for big allocations 2020-01-09 11:30:53 +08:00
amlogic crypto: amlogic-gxl - permit async skcipher as fallback 2020-07-16 21:49:02 +10:00
axis crypto: artpec6 - use crypto_shash_tfm_digest() 2020-05-08 15:32:13 +10:00
bcm crypto: bcm - Use the defined variable to clean code 2020-05-08 15:30:40 +10:00
caam crypto: caam - Remove broken arc4 support 2020-07-16 21:49:00 +10:00
cavium crypto: cpt - Fix sparse warnings 2020-07-03 14:18:35 +10:00
ccp crypto: ccp - permit asynchronous skcipher as fallback 2020-07-16 21:49:03 +10:00
ccree crypto: ccree - remove unused field 2020-06-26 14:49:53 +10:00
chelsio crypto: chelsio - permit asynchronous skcipher as fallback 2020-07-16 21:49:03 +10:00
hisilicon crypto: hisilicon/sec2 - fix some coding styles 2020-07-16 21:49:01 +10:00
inside-secure crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
marvell crypto: octeontx - Fix sparse warnings 2020-06-18 17:47:16 +10:00
mediatek crypto: mediatek - use crypto_shash_tfm_digest() 2020-05-08 15:32:13 +10:00
nx crypto/nx: Remove 'pid' in vas_tx_win_attr struct 2020-04-20 16:53:14 +10:00
qat crypto: qat - fallback for xts with 192 bit keys 2020-07-09 18:25:16 +10:00
qce crypto: qce - permit asynchronous skcipher as fallback 2020-07-16 21:49:03 +10:00
rockchip crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
stm32 crypto: stm32/crc32 - protect from concurrent accesses 2020-05-23 00:08:21 +10:00
ux500 crypto: ux500/hash - Add namespacing to hash_init() 2020-07-09 15:49:28 +10:00
virtio crypto: virtio - constify features[] and id_table[] 2020-07-09 18:25:22 +10:00
vmx .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
xilinx crypto: xilinx - Remove set but not used variable 'drv_ctx' 2020-05-05 12:35:07 +02:00
atmel-aes-regs.h
atmel-aes.c crypto: atmel-{aes,sha,tdes} - Retire crypto_platform_data 2020-01-22 16:21:09 +08:00
atmel-authenc.h crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
atmel-ecc.c crypto: atmel-ecc - factor out code that can be shared 2019-05-30 15:35:45 +08:00
atmel-i2c.c crypto: atmel-i2c - Fix wakeup fail 2020-03-20 14:36:51 +11:00
atmel-i2c.h crypto: atmel - Fix -Wunused-const-variable warning 2019-08-30 18:05:31 +10:00
atmel-sha204a.c crypto: atmel-sha204a - Use device-managed registration API 2019-08-02 14:43:59 +10:00
atmel-sha-regs.h
atmel-sha.c crypto: lib/sha1 - remove unnecessary includes of linux/cryptohash.h 2020-05-08 15:32:17 +10:00
atmel-tdes-regs.h
atmel-tdes.c crypto: atmel-{aes,sha,tdes} - Retire crypto_platform_data 2020-01-22 16:21:09 +08:00
exynos-rng.c crypto: exynos - use devm_platform_ioremap_resource() to simplify code 2019-08-09 15:11:59 +10:00
geode-aes.c crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
geode-aes.h crypto: geode-aes - convert to skcipher API and make thread-safe 2019-10-23 19:46:56 +11:00
hifn_795x.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
img-hash.c crypto: img-hash - remove redundant initialization of variable err 2020-06-26 14:46:43 +10:00
ixp4xx_crypto.c crypto: remove CRYPTO_TFM_RES_WEAK_KEY 2020-01-09 11:30:53 +08:00
Kconfig crypto: qce - support zero length test vectors 2020-07-03 14:18:34 +10:00
Makefile crypto: marvell - create common Kconfig and Makefile for Marvell 2020-03-20 14:36:51 +11:00
mxs-dcp.c crypto: mxs-dcp - permit asynchronous skcipher as fallback 2020-07-16 21:49:03 +10:00
n2_asm.S
n2_core.c crypto: n2 - use crypto_shash_tfm_digest() 2020-05-08 15:32:14 +10:00
n2_core.h
omap-aes-gcm.c crypto: omap-aes - avoid spamming console with self tests 2020-06-04 22:03:39 +10:00
omap-aes.c crypto: omap-aes - permit asynchronous skcipher as fallback 2020-07-16 21:49:02 +10:00
omap-aes.h crypto: omap-aes - permit asynchronous skcipher as fallback 2020-07-16 21:49:02 +10:00
omap-crypto.c crypto: omap-crypto - fix userspace copied buffer access 2020-06-04 22:03:40 +10:00
omap-crypto.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
omap-des.c crypto: omap-des - Fix sparse/compiler warnings 2020-06-26 14:46:42 +10:00
omap-sham.c crypto: omap-sham - Fix sparse/compiler warnings 2020-06-26 14:46:42 +10:00
padlock-aes.c crypto: Convert to new CPU match macros 2020-03-24 21:36:06 +01:00
padlock-sha.c crypto: Convert to new CPU match macros 2020-03-24 21:36:06 +01:00
picoxcell_crypto_regs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
picoxcell_crypto.c crypto: picoxcell - permit asynchronous skcipher as fallback 2020-07-16 21:49:03 +10:00
qcom-rng.c crypto: qcom-rng - use devm_platform_ioremap_resource() to simplify code 2019-08-09 15:12:03 +10:00
s5p-sss.c crypto: s5p-sss - use crypto_shash_tfm_digest() 2020-05-08 15:32:14 +10:00
sahara.c crypto: sahara - permit asynchronous skcipher as fallback 2020-07-16 21:49:04 +10:00
talitos.c crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
talitos.h crypto: talitos - drop icv_ool 2019-07-03 22:13:11 +08:00